Leonardo da vinci create the technique known as sfumato

What is the name of the song released by the artist "owl city" in 2009 as a hit single? (it was also one of the dankest memes of 2017)

To create an illustration of perspective, this artist did all of the following except 1) show clear orthogonal lines 2) have an implied vanishing point 3) distort proportion to keep the background and foreground the same size 4) include value changes between the foreground and background i was thinking maybe 1

Men’s hand a. is characterized by delicate lines, strong muted colors, and asymmetrical compositions. b. depicted the lower class as equal to higher classes. c. were created on scrolls and used for teaching about the buddhist deities. d. satirized different levels of society